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10% Ammonia helps recover appearance of dried insects.

 
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MarkSturtevant



Joined: 21 Nov 2015
Posts: 388

PostPosted: Tue Feb 27, 2018 10:38 pm    Post subject: 10% Ammonia helps recover appearance of dried insects. Reply with quote

I did not know about this (and maybe people here do, but i remember the question coming up here not too long ago), but carefully applied 10% ammonia can recover a lot of the normal look of compound eyes and other features in dried insects. See the work of André De Kesel

https://www.flickr.com/photos/andredekesel/albums/72157631817963808/with/8582201413/. He gives detailed notes in the 'before' and 'after' pictures.
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Mark Sturtevant
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BugEZ



Joined: 26 Mar 2011
Posts: 719
Location: Loves Park Illinois

PostPosted: Wed Mar 07, 2018 3:26 pm    Post subject: Reply with quote

This is very interesting.

I mixed an ammonia solution by diluting household ammonia per Andre's recommendations (50-50 household ammonia- deionized water mix) and applied it to the head area of a small dolichopodidae (long legged fly) from my bone yard. I used a small watercolor paintbrush. I was impressed with how quickly more lifelike eye appearance was restored. The color of the ommatidia immediately went from brown to green and under magnification the alternating stripes of ommatidia colors reappeared. Since the mixture was only applied to the head of this small fly, the wings were unaffected. Perhaps with more patience (subsequent applications of some water to allow the eye to rehydrate more thoroughly) an even better result might be expected.

This is a very useful technique.

Mark, Thanks for sharing!

Keith


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MarkSturtevant



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PostPosted: Wed Mar 07, 2018 10:13 pm    Post subject: Reply with quote

Wow, that looks pretty good! Did not expect to see recovery of colors. That may not always be the case.
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